Jet Mixing in Direct-Chill Casting of Aluminum: Crater Effects and its Consequence on Centerline Segregation

Jet Mixing in Direct-Chill Casting of Aluminum: Crater Effects and its Consequence on Centerline Segregation

Recent reports have demonstrated the possibility of mitigating macrosegregation during the Direct-Chill casting of rolling slab ingots using an impinging jet. Herein, an analytical model is presented to predict the shape of the crater formed due to the impact of the jet on the slurry region. The mod...

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Veröffentlicht in:Metallurgical and materials transactions. B, Process metallurgy and materials processing science Process metallurgy and materials processing science, 2017-08, Vol.48 (4), p.2114-2122
Hauptverfasser: Wagstaff, Samuel R., Allanore, Antoine
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum
Casting
Characterization and Evaluation of Materials
Chemistry and Materials Science
Chill casting
Chill rolls
Craters
Direct chill casting
Eutectics
Impingement
Ingot casting
Ingots
Materials Science
Metallic Materials
Nanotechnology
Slab casting
Slurries
Stress concentration
Structural Materials
Surfaces and Interfaces
Thin Films
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Zusammenfassung:Recent reports have demonstrated the possibility of mitigating macrosegregation during the Direct-Chill casting of rolling slab ingots using an impinging jet. Herein, an analytical model is presented to predict the shape of the crater formed due to the impact of the jet on the slurry region. The model takes into account alloy composition, physical dimension, and casting speed on the distribution of forces and crater shape. The calculated shape of the crater profile is used to explain the centerline depletion in the impingement region previously reported.
ISSN:1073-5615
1543-1916
DOI:10.1007/s11663-017-0986-9